Epitsentrite i seizmichnite linii v NR Bulgarii︠a︡
Contributors: Grigorov, Borislav M.
Publisher: Bulgarska akademii︠a︡ na naukite
Published: 1964
Place of publication: Sofii︠a︡
Language: bul
Number of pages: 81
Subjects: Seismology
Notes: At head of title: Bulgarska akademii︠a︡ na naukite. Geofizicheski institut. Ek. Grigorova i B. Grigorov.

Added t. p. in French.

Summaries in Russian and French.

Bibliography: p. 71-73.